| 大体积无粘结预应力混凝土卵形消化池施工技术 |
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| 引用本文： | 杨国新,陈军.大体积无粘结预应力混凝土卵形消化池施工技术[J].铁道劳动安全卫生与环保,2008,35(5):223-226. |
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| 作者姓名： | 杨国新 陈军 |
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| 作者单位： | 中铁四局集团市政工程分公司,湖北,襄樊,441000 |
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| 摘 要： | 以武汉三金潭污水处理厂项目中2座13900m^3卵形消化池工程为实例，概要介绍了消化池施工特点及整体方案，以及伞形模架系统设计及安装、大体积混凝土、无粘结预应力施工等关键技术。伞形模架系统的成功实践，是对卵形消化池传统模板施工工艺的一次技术革新，同时对其他类似曲面体构筑物的施工也具有很大参考价值。
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| 关 键 词： | 卵形消化池 伞形模架系统 无粘结预应力 变角张拉 |
Construction Technique for Egg-shaped Digestion Tank of Large Capacity and Unbonded Prestressed Concrete |
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| YANG Guo-xin,CHEN Jun.Construction Technique for Egg-shaped Digestion Tank of Large Capacity and Unbonded Prestressed Concrete[J].Railway Occupational Safety Health & Environmental Protection,2008,35(5):223-226. |
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| Authors: | YANG Guo-xin CHEN Jun |
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| Institution: | YANG Guo-xin,CHEN Jun(China Tiesiju Civil Engineering Group Co.,Ltd.Municipal Engineering Branch,Xiangfan 441000,China) |
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| Abstract: | In accordance with two egg-shaped digestion tanks with the capacity of 13 900 m3 in Wuhan Sanjintan Wastewater Treatment Plant,this paper presents the construction features and schemes of the tanks.Meanwhile,the key construction techniques on design and installation of umbrella-shaped formwork and scaffolding system,mass concrete,unbonded prestressed stretching and etc.are expounded. |
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| Keywords: | egg-shaped digestion tank umbrella-shaped formwork and scaffolding system unbonded prestressing angle-changing extension |
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